Add wipe functions, compiles in CM7, text shows in UI, zips install

Zip install works, had to move mincrypt code into TWRP to prevent
a crash when checking the zip signature.
Added wipe functions
Made it compile in CM7
Made text show up in console and logging

roots.cpp

@@ -274,7 +274,11 @@ int format_volume(const char* volume) {
     }
 
     if (strcmp(v->fs_type, "ext4") == 0) {
+#ifdef USE_EXT4
         int result = make_ext4fs(v->device, v->length, volume, sehandle);
+#else
+        int result = 0;
+#endif
         if (result != 0) {
             LOGE("format_volume: make_extf4fs failed on %s\n", v->device);
             return -1;